Comment Re:Whoa... (Score 1) 297
It already was proven to work in 2005 (local elections).
Acoustic Sensors Make Any Surface a Touch Pad 142
An anonymous reader writes "Using cheap acoustic sensors the surface of any 3D object can be instantly made into a touch-sensitive interface capable of tracking two objects at once. Its creators are planning to make hospitals more hygienic — keyboards and mice will be replaced by desks wired to perform as keyboards and touchpads. A video shows it in action [.wmv]."
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